Cable-cutting device



May 1, 1928.

E. D. SPOERRI CABLE CUTTING DEVICE Filed Auz. 29. 1927 3 anoeutozPatented May I, 1928.-

autumn D. sronnnr, or OMAHA, NEBRASK CABLE-CUTTING nnvrcn.

' Application filed August 29, 1927. Serial No. 216,149.

This invention relates to a cable-cutting device which may be usedtoadvantage in connection with the measuring and reeling device shown inUnited States Patent No. 1,621,633 dated April 12, 1927, and issued,

However it may be used to this applicant.

said patent and may be independently of employed in severing bolts,metallic articles. r

An object of the invention is to provide such an arrangement of partsthat the device will be convenient in operation for outtin steel cablesof all usual diametersnother object is to provide shear-blades of suchform that the cutting will be accomplished without bending, twisting ordlsplacing any of the strands of the cable.

Still another object is to provide such an arrangement of parts that anunusual degree of power may be developed within the limits of a smallspace, said parts to be few and simple, durable in use and convenient inmanufacture. I

With the foregoing objects in view' and others to be mentionedhereinafter the invention presents a new and useful construction,combination and arrangement of parts as described herein and claimed,and as illustrated in the accompanying drawing, it being understood thatchanges may be made in form, size and proportion of parts and minordetails without departing from the spirit of the invention as claimed;

In the drawing, view of the device. Fig. 2 is a plan 'view of the same.Fig. 3 is a side view of a combined shear-blade and segment.

Referring now to the drawing for a more particular description, numeral'5 indicates a frame preferably of rectangular form in plan and having apair of side-plates 6.

In order that the objects first mentloned may be maintained I provide apair of lever arms 7 and 8, these being mounted to swing from apivot-pin 9 which is disposed transversely of and is mounted in theframe near one end thereof.

Each lever-arm is provided with a longitudinally curved cutter-blade 10,these outter-blades being at one of the ends of said arms closelyadjacent to the pivot-pin 9, the remaining part of each lever-armpreferably being of fan-shape, and provided at its end with arrangedteeth 12.

rods or other Fig. 1 is a front orside as indicated at 11 segmentallywith the teeth 12 of the negmentally air The lever-arms with theirfan-shaped parts andsegmentally arranged teeth men- .tioned are disposedin the frame between the side-plates 6,said teeth being at the innersides of. the lever-arms or fan-shaped parts 11.

Numeral 13indicates a pinion which is Zdisposed between the fan-shapedparts, 11,

its teeth being in engagement with the teeth 12, said pmlon beingmounted upon a wristpin 14 whichis journalled in the frame, and

by means. of a crank 15 the pinion may be rotated for moving thelever-arms and their shear-blades.

It will be noted that the distance of the teeth 12 from the pivot-pin 9greatly exceeds the distance of the shear-blades 10 from said pivot-pin,and therefore the degree of power applied to the fan-shaped arms 11 atthe ends where the teeth 12 are located will be suflicient to seversteel cables readily, regardless of. the diameters of the cables.

In operation, the pinion when rotated will cause swinging movements ofthe lever-arms, their movements being in reverse directions. The crankmay be moved in one direction to cause the shear-blades to moveoutwardly from each other. The cable or other article tobe severed maythen be placed between the shear-blades. The crank 15' isthen swung in areverse direction to cause the shearblades to move toward each other forsevering the cable.

It will be understood that, when assembling the parts, the pinion isdisposed mid way between the upper and lower ends of the rows of teeth12, the result being that when the shear-blades are completely separatedto permit a cable to'be inserte therebetween, one of the fan-shapedparts 11 will be elevated and the other part 11 will be moved downward,said arms moving reversely in arcs, the center of said arcs being thepivot-pin 9.

Numerals 16 indicate stop-lugs, and one of these lugs is secured to eachfan-shaped part 11, on the outer side thereof near its upper edge, andin operation when a part 11 of a lever arm has been swung downwardly arequired distance, its lug 16will engage asideplate 6 of the frame, toprevent any further downward swinging movement thereof, and

ranged teeth 12 of said fan-shaped parts 11 withoutany attention of .anoperator.

It Will be noted that the shear-blades 10 are disposed outwardly of oneof the ends of the frame 5, and that the lugs 16 are disposed in thevertical plane of the sideplates 6 of the frame, these features being ofadvantage in operation. The parts 11 of the lever-arms 7 and 8 arepreferably of fanshape for the purpose of providing a strong support forthe rows of segmentally arranged teeth 12.

The inner fiat faces 00 of the lever-arms 7 and 8, adjacent to theirpivotal mounting, are of ample area. These faces a; are in contact Witheach other at all times, and on account of the construction thelever-armswill be maintained parallel With each other, and

the teeth 12 Will be maintained in engagement With the teeth of thepinion.

I claim as my invention In a cutting device for the purposes described,an upright rectangular frame, a rotatable Wrist-pin journalle'd in theframe, a pinion carried by the Wrist-pin, a pair of lever-arms pivotallymounted in the frame,

each arm being provided outwardly of and closely adjacent to its pivotalmounting with a shear-blade,that part of each arm oppo- 7 site to itsshear-blade and pivotal mounting being of fan-shape and provided withsegmentally arranged teeth in engagement with said pinion.

In testimony Where0f,I have affixed my signature;

EUGENE n. SPOERRI.

